/**
**************************************************************************************
*Founder Effect                                                                      *
*Copyright (C) 2006-2007, 5d Studios (www.5d-Studios.com)                            *
*                                                                                    *
*This library is free software; you can redistribute it and/or                       *
*modify it under the terms of the GNU Lesser General Public                          *
*License as published by the Free Software Foundation; either                        *
*version 2.1 of the License, or (at your option) any later version.                  *
*                                                                                    *
*This library is distributed in the hope that it will be useful,                     *
*but WITHOUT ANY WARRANTY; without even the implied warranty of                      *
*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU                   *
*Lesser General Public License for more details.                                     *
*                                                                                    *
*You should have received a copy of the GNU Lesser General Public                    *
*License along with this library; if not, write to the Free Software                 *
*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA      *
**************************************************************************************
*/
#pragma once
#include <string>
#include "IScriptEngine.h"

#include "lunar.h"

extern "C" {
 	#include <lua.h>
 	#include <lualib.h>
 	#include <lauxlib.h>
}


/** 
 * A Lua implementation
 */
class LuaEngine : public IScriptEngine
{
public:
    LuaEngine(void);
    /** Init the scripting engine */
    int Init();
    /** Close off the engine */
    void Shutdown();
    /** Execute a file */
    int RunFile(const std::string &filename);
    
    /** Call a script function */
    void CallFunction(const std::string &name);

    /** Set a global integer */
    void SetGlobalInt(const std::string name, const int val);
    /** Set a global double */
    void SetGlobalDouble(const std::string name, const double val);
    /** Set a global string */
    void SetGlobalString(const std::string name, const std::string val);
    /** Retrieve the global int */
    int  GetGlobalInt(const std::string name);
    /** Retrieve the global double */
    double GetGlobalDouble(const std::string name);
    /** Retrieve the global strng */
    const std::string GetGlobalString(const std::string name);

    /** Lua version */
    const std::string GetImplementation() { return LUA_VERSION; }

public:
    virtual ~LuaEngine(void);

private:
    lua_State *L;
};
